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THEFT WARNING SYSTEM
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TIWA0022E
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THEFT WARNING SYSTEM
RHD MODELS
TIWA0023E
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THEFT WARNING SYSTEM
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TIWA0024E
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NATS (NISSAN ANTI-THEFT SYSTEM)
NATS (NISSAN ANTI-THEFT SYSTEM)
PFP:25386
Component Parts and Harness Connector LocationEIS001RQ
PIIA0586E
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NATS (NISSAN ANTI-THEFT SYSTEM)
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System DescriptionEIS001RR
NATS (Nissan Anti-Theft System) has the following immobilizer functions:
●Since only NATS ignition keys, whose ID nos. have been registered into the ECM and IMMU of NATS,
allow the engine to run, operation of a stolen vehicle without a NATS registered key is prevented by
NATS.
That is to say, NATS will immobilize the engine if someone tries to start it without the registered key of
NATS.
●This version of NATS has dongle unit to improve its anti-theft performance (RHD models). Dongle unit has
its own ID which is registered into NATS IMMU. So if dongle unit is replaced, initialization must be carried
out.
●When malfunction of dongle unit is detected:
The security indicator lamp illuminates for about 15 minutes after ignition switch is turned to ON.
–When dongle unit has a malfunction and the indicator lamp is illuminated, engine can not be started. How-
ever engine can be started only one time when security indicator lamp turns off in about 15 minutes after
ignition switch is turned to ON.
●All of the originally supplied ignition key IDs have been NATS registered.
If requested by the vehicle owner, a maximum of five key IDs can be registered into the NATS compo-
nents.
●The security indicator blinks when the ignition switch is in “OFF” or “ACC” position. Therefore, NATS
warns outsiders that the vehicle is equipped with the anti-theft system.
●When NATS detects trouble, the security indicator lamp lights up as follows.
●NATS trouble diagnoses, system initialization and additional registration of other NATS ignition key IDs
must be carried out using CONSULT-II hardware and CONSULT-II NATS software.
Regarding the procedures of NATS initialization and NATS ignition key ID registration, refer to CONSULT-
II operation manual, NATS.
●When servicing a malfunction of the NATS (indicated by lighting up of Security Indicator Lamp) or
registering another NATS ignition key ID no., it may be necessary to re-register original key iden-
tification. Therefore, be sure to receive ALL KEYS from vehicle owner.
Condition IGN ON andWith dongle Without dongle
MIL Security indicator MIL Security indicator
NATS malfunction
(except dongle unit) is
detected—1. 6 times blinking
2. Staying ON after igni-
tion switch is turned
ON— Staying ON
Only malfunction of don-
gle unit is detected.—Staying ON for about 15
minutes after ignition
switch is turned ON——
Malfunction of NATS and
engine related parts are
detected.Staying ON1. 6 times blinking
2. Staying ON after igni-
tion switch is turned
ONStaying ON Staying ON
Only engine related part
malfunction is detected.Staying ON — Staying ON —
Just after initialization of
NATS— 6 times blinking — —
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NATS (NISSAN ANTI-THEFT SYSTEM)
System Composition
EIS001RS
The immobilizer function of the NATS consists of the following:
●NATS ignition key
●NATS immobilizer control unit (IMMU) located in the ignition key cylinder
●Engine control module (ECM)
●Dongle unit (RHD models)
●Security indicator
SIIA1246E
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NATS (NISSAN ANTI-THEFT SYSTEM)
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Wiring Diagram — NATS —EIS001RT
GASOLINE ENGINE MODELS
TIWA0025E
SMA for models with roof mounted driving lamp
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NATS (NISSAN ANTI-THEFT SYSTEM)
DIESEL ENGINE MODELS
TIWA0026E
SMA for models with roof mounted driving lamp